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In late 2023, American meteorologist and tornado expert Thomas P. Grazulis created the Outbreak Intensity Score (OIS) as a way to rank tornado outbreaks. [1] [2] For the score, only significant tornadoes are counted: F2/EF2 tornadoes receive 2 points each, F3/EF3 tornadoes receive 5 points each, F4/EF4 tornadoes receive 10 points each, and F5/EF5 tornadoes receive 15 points each. [1]
The weather system responsible for the outbreak was evident multiple days prior, but the area that received the worst tornadoes was not expected to be the main threat. On March 9, the Storm Prediction Center (SPC) highlighted a 15% probability area of severe weather on March 14 for areas in northeast Texas and far southeast Oklahoma ...
List of tornadoes in the 1965 Palm Sunday tornado outbreak; Tornado outbreak of May 1968; Tornado outbreak of April 17–19, 1970; Tornado outbreak sequence of June 10–16, 1970; List of tornadoes in the 1974 Super Outbreak; 1974 Super Outbreak; Tornado outbreak of April 1–2, 1974; Tornado outbreak of April 1977; 1979 Red River Valley ...
On most weekends from March through October, 8,000 to 10,000 people work or shop at Eastern Washington’s largest open-air flea market just off Highway 12 at 3620 E. Lewis Place in Pasco.
1759 North America measles outbreak 1759 North America Measles: Unknown [109] 1760 Charleston smallpox epidemic 1760 Charleston, British North America: Smallpox: 730–940 [110] [111] 1762 Havana yellow fever epidemic 1762 Havana, Cuba: Yellow fever: 8,000 [106] 1763 Pittsburgh area smallpox outbreak 1763 North America, present-day Pittsburgh ...
This marked the beginning of Indiana’s largest tornado outbreak in history. Another 20 tornadoes spun up across 45 other counties in the state between 2 and 8 p.m. that day. The tornadoes killed ...
At least one Indiana resident and dozens more across the country got sick from eating Boar's Head deli meat infected with the bacteria listeria. Deli meat listeria outbreak in Indiana & 12 other ...
List of tornadoes in the tornado outbreak of March 31 – April 1, 2023#Mississippi (March 31 – April 1) Parkersburg—New Hartford, Iowa: 2008 May 25 $75,000,000 $107,435,916: EF5 Tornado outbreak of May 22–27, 2008: St. Louis, Missouri: 1959 February 10 $10,000,000 $105,985,223: F4 St. Louis tornado outbreak of February 1959: